Rating: 5 / 5
They weigh 580grams for a US10.5 men's pair. This is my favorite water shoe. They are soo.. much better than either the Salomon Tech Amphibian or the Tech Amphibian Pros (both of which I own and have used). These are my shoe of choice when I'm backpacking in wet conditions. They were terrific when I backpacked Paria Canyon through miles of water this fall. There isn't anything I've used that compares to them for wet conditions. They are comfortable, flex well, dry very rapidly, have standard laces that don't break quickly (unlike the Salomon), and they are so light that sometimes I use them for other hikes and backpacking trips too.
Responding to John Adams review, I've never had the insole slide in my Teva X-1 shoes. I'm on my third pair. It seems very strange. There is an X-1C Teva running shoe that is a different shoe that I've never tried before.
With regard to fit, I don't think that because a person doesn't feel they fit their own feet well, that the shoe rating should be affected. Try them on before you buy them, if they don't fit, buy another shoe.
I've backpacked and hiked in X-1 shoes for a lot of miles. They are excellent when the conditions don't require the thicker sole of a shoe like the Inov8 Flyroc or Terroc.